Combined air-compressor and shock-absorber.



J. D. JACKSON. I COMBINED AIR COMPRESSOR AND SHOCK ABSORBER.

APPLICATION FILED DEO.23, 1911.

Patented Sept. 10, 1912.

FEGHL I): kl W Z W m w 4 U i f To all whom, it m ay concern:

JOSEPH D. JACKSON. OF WASI-IINGTON. PENNSYLVANIA.

COMBINED AIR-'JOMPRESSOR AND SHOCK-ABSORBER.

Specification of Letters Patent.

Patented Sept. 10, 1912.

Application filed December :23, 1911. Serial No. 667.519.

-Be itknown that I, Josnru D. Jac son, a citizen of the United States, and resident of lVashington, in the county of \Vashington and State of Pennsylvania, have invented a new and useful In'iproven'ient in Combined Air-Compressors and Shock-Absorbers; and I do hereby declare the follow ng to be a full, clear, and exact description thereof.

My invention relates to a shocl' absorber and air compresso.

The object of my invention is to provide a means for automatically producing and storing a suflicient quantity of fresh air, for the purpose of inflating tires, operating pneumatic motor starter, or other uses to which compressed air may be found desirable'in connection with the operations of an :-vib ratins of the moving vehicle.

' vehicle for moving chassis of the vehicle with my invention apj d thereto; Fig. 2 is an enlarged vertical automobile .or its accessories. Said com pressed air being obtained by the hereinusing the spring The natural resistance caused by said compres-' sion will in turn produce a proficient shock restrainer.

To these ends my invention comprises,

after described means of generally stated, a cylinder attached to the vehicle body, a piston, a piston rod, the crank to which the piston rod is connected, and means operated by the jolting. of the said piston, said piston always acting to. complete the stroke of the piston before said piston reverses, whereby the air is compressed to the full extent before the piston reverses, and said air is conducted to a siiitable storage tank to be used when desired."

Referring to the accompanying drawing Figure 1 is a side view of a portion of the sectional view;.Fig. 3 is an enlarged face view of the gear mechanism; Fig. 4 is an enlarge d detail of the pawl and gear mecha nism; and Figs. 5 and 6 show .a modified form of my invention.

In the drawing the numeral 2 designates the side frame of a suitable chassis or running gear of an automobile or other Vehicle. A suitable bracket 3 is bolted or otherwise secured to the frame 2. A cylinder 4 is mounted to swing on the bracket 3 by means of the pivot 5. Within the cylinder 4 is the piston 6 to which the piston rod 7 is con nected. The piston rod 7 passes out through .with the air intakes 11 and 12 pending opposite end of said shaft is the pinion 19 gear wheel 20 on the a suitable stutling box 8 and said piston rod is connected to the wrist pin 9 on the crank disk 10.

The heads of the cylimler i are provided provided with suitable check valves. The outlets 13 and ll are also pro\ ided with check valves and said outlets are connected up with the pipe 15 which is connected to the pipe 16 leading to the tank 17. This pipe 16 is flexible, allowing for the swinging of the cylinder 4.

The crank disk 10 is mounted on the shaft 18 which is journaled in bearings in the deportion 3 of the bracket and in the which meshes with the shaft 21. This gear wheel 20 has the ratchet 22 connected thereto or forming part thereof. Arms 23 and 24 are mounted on the shaft 21 and said arms carry pawls .25 and 26 which engage the teeth of the ratchet 22. These pawls are spring actuated by the springs 27 and are always held in engagement by the ratchet 22. The pawls and 26 are reversed so that when one is turning the ratchet 22 and gear wheel 20 in one direction, the other is slipping over the teeth of the ratchet.

Lever arms 28 and 29 are connected to the arms 23 and 24, respectively, said lever arms being pivotally connected by the pin 30, and one of said lever arms 29 is connected to the bolt 31 in the bracket arm 32. This bracket arm 32 is carried by the axle 33 being secured thereto by the clamping bolts 34. Through the bifurcated end 32 of the bracket 32 extend the screws 32 which are eoncaved at their inner ends to partly embrace the bolt 31, as shown in dotted lines Fig; 2. This construction permits the lever-arms to swing on the bolt 31 as well as on the screws 32*, thus giving a universal movement.

lVhen my improved shock absorber and air compressor is in use and the vehicle in running encounters rough spots or depressions in the roadway, the chassis will he moved up and down a distance in proportion to the depression or unevenness, and at the same time the axle 33 will also move up and down, but whichever way the movement is, or whether it is a short quick jolt or a long one, the piston 6 will always complete its stroke before it reverses, or in other words, the crank disk 10 will always rotate in the same direction. This is due to the wheel 20.

movement of the arms 23 and 24: which will i always rotate the gear wheel 20 in the same direction whether said arms move up or down, as the pawl on one arm will be moved over the teeth oi? the ratchet 22 while the teeth of the other pawl a e rotating the gear- .liy his construction, as stated above. the pi; :n (5 is always cushioned, while at the some time it always completes its stroke so that the air is con'lpressed at both ends of the cylinder and this compressed air is forced out. through the check valves in the outlets 1 :3 and 14 into the pipe 15 to be conveyed by the flexible pipe 16 to the tank 17. The proper compression of the air is always insured as the piston 6 never stops moving in one direction until it has completed its complete stroke, so that there is no sudden movement of the iston in opposite directions where light ]0ltS are received. I am therefore able to maintain a constant supply of compressed air in the cylinder or tank 17 which may be drawn off from time to time for whatever purpose it may be available in connection with the running of an automobile or other vehicle.

In Figs. 5 and 6 I have illustrated a modified form of my invention in which I employ a frictional gear for the ratchet of the above described mechanism, and this frictional gear comprises the frictional wheel 35 and the arms 36. In this case the arms :36 carry the pivotall mounted dog 38 which engages the face 0 the wheel 35, and the do is permitted to move over the face of sai wheel freely when the arm of said face is moved in one direction but in. the opposite direction the dog 38 grips thewheel 35 and moves it around in the same manner that the wls move the ratchet wheel 22 above. What I claim is:

1. In a device of the character described, the combination of a. cylinder, 0. piston, a. piston rod, a crank to which said piston is connected and means operated by the jolting of the vehicle for moving said crank always in the same direction whereby the stroke of the piston is completed before it reverses, a storage reservoir and connect-ions between said cylinders-and said storage reservoir.

2. In a device of the character described, the combination of a cylinder, a piston, apiston rod, a crank to which said piston is connected, a pinion in the crankshaft, a

means for movi gear wheel en aged by said pinion, and means operate by the jolting of the vehicle. to move said gear wheel in the same direction whereby said piston completes its stroke before reversing, a storage tank and connections between said cylinder and said storage tank In a device of the character described, the combination of a cylinder, a piston, a piston rod, a crank to w iich said piston is connected, a pinion on the crank shaft, 0. gear wheel en a ed by said inion, arms on the gear wheefsiiaft, means or moving said arms by the jolting of the vehicle, and means carried by said arms operating alternately to move said gear wheel in the same direction whereby the piston completes its stroke before reversing, a storage tank and connectioxLs between said cylinder and said storage tan 4. In a device of the character described, the combination of a c linder, a piston, a

iston rod, a crank to which said iston rod is connected, a pinion on the cran shaft, a gear wheel on a ed by said inion, arms on the ear whee aft, reverse y acting pawls carried by said arms, a. ratchet connected to said or wheel engaged by said pawla where y by the movement of said arms the gear w ee 20 is moved in the same direction, and the piston completes its stroke before reversing, a storage tank, connections between said stora tank'and said cylinder.

5. In a device 0 the character described.

' the combination of a c lindor, a piston, a

piston rod, a crank to w oh and iston rod is connected, a pinion on the c shaft, a gear wheel enga said pinion, arms on said gear wh sh: rcversaly mounted pawls carried by said arms, a ratchet connected to said goal" wheel engaged by said pawls, lever-arms connected maid arms, said lover by the joltin of the ve 'cle whereby said pow]: turn t e'gear wheel 20 in the some directioni a storage tank and connolcticlms between sci 1n er.

storage tank and said c I the said In testimony whereo D. Jacxson, have hereunto set my hand. v JOSEPH n. Jaoxsott,

Witnesses:

ROBERT C. Torrmx, J orm F. WILL. 

